PDF guide: organize pages, fill forms and edit metadata
Choose PDF tools for merging, splitting, page order, watermarks and forms. Understand the difference between page appearance, editable fields and metadata.
Choose an operation for your task
Choose PDF tools for merging, splitting, page order, watermarks and forms. Understand the difference between page appearance, editable fields and metadata.
| Your task | Where to start |
|---|---|
| Reorganize pages | Merge, split or reorder a copy, then check page boundaries |
| Fill a form | Inspect field names before filling; flatten only when editing is finished |
| Hide sensitive content | Use a dedicated redaction workflow; cropping and metadata removal are insufficient |
Work in order and retain the original
Inspect a representative PDF before processing the full document. Confirm encryption, page count and whether text is selectable. For forms, inspect field names and supported types first, fill a copy, and only flatten after checking the visible values. Keep the editable source when the recipient may need further revisions.
Inspect fields → fill exact names → reopen → flatten a copy → verify pages and values.Separate processing success from acceptance
Open the saved output in a second viewer. Verify page order, clipped edges, overlays and field values. Editing may invalidate signatures; OCR, general redaction and XFA are outside these tools.
Before you finish
Expand a tool below for its steps, options and limits. Choose the tools needed for your task; you do not need to use every one.
- Open the saved output in a second viewer. Verify page order, clipped edges, overlays and field values. Editing may invalidate signatures; OCR, general redaction and XFA are outside these tools.
- Reopen the download and compare it with the example and the meaning of the input.
- When an input exceeds the stated boundaries, retain it and split the task or use a suitable processor; renaming an extension does not make it compatible.
References
- PDF — format and implementation reference
Reference for format and processing boundaries. The operating reference states the actual supported scope of this site.
Tools in this category
Expand a tool to see its steps, options and supported formats, then open its workspace.
Merge PDFPut your PDFs together, in your order.
Combine two or more PDFs in the numbered file-list order. Page text and vectors stay as PDF content. Interactive forms and signed documents are rejected; document bookmarks and attachments are not copied.
Steps
- Choose at least two local .pdf files. Use the arrows to set their output order.
- Select “Merge PDFs”; the files are processed in this browser.
- Review each source page range and preview the boundaries, then download and reopen merged.pdf.
Capabilities and limits
- Choose 2–20 unencrypted PDFs, up to 30 MiB per file, 80 MiB total and 300 output pages. Keep the originals.
Split PDFKeep the pages you need.
Split one PDF into a file for each comma-separated page or range, or export every page separately. Multiple results include a ZIP. The source stays in the browser; signed PDFs and interactive forms are rejected.
Steps
- Choose one local .pdf file and select page ranges or one file per page.
- For ranges, enter comma-separated groups such as 1-2,3. Each group becomes its own PDF; unlisted pages are omitted.
- Select “Split PDF”, inspect the source-page mapping and preview, then download individual PDFs or the ZIP.
Available options
- Split into
- One PDF per comma-separated range · One PDF per page
- Pages (1,3-4, or all)
- Enter as needed
Capabilities and limits
- One unencrypted PDF, up to 30 MiB and 300 pages. Total generated PDFs are limited to 100 MiB; keep the original.
Images to PDFA set of images. One tidy document.
Turn selected images into one PDF in the numbered queue order, one white-backed image per page. Choose A4, Letter or a page fitted to each image, then inspect the result. Files are decoded and re-encoded, so original image bytes and metadata are not retained.
Steps
- Choose local .png, .jpg, .jpeg or .webp files; sort numbered filenames or use the arrows to set PDF page order.
- Choose A4 or Letter and orientation, or fit each image to its own page. Set the margin and confirm the paper choices.
- Create the PDF, review each source-to-page mapping and preview, then download and reopen images.pdf.
Available options
- Paper size
- A4 · Letter · Fit each image
- Orientation
- Portrait · Landscape
- Page margin (mm)
- 12
- I confirmed the paper size and orientation.
- Off by default
Capabilities and limits
- Choose 1–20 static JPEG, PNG or WebP images, up to 20 MiB each, 80 MiB total and 16 million pixels per image. The generated PDF is limited to 100 MiB.
Rotate PDFTurn sideways PDF pages the right way up.
Save sideways pages in the right orientation. Select one or more pages and add 90, 180 or 270 degrees clockwise to their current rotation; the other pages stay as they are.
Steps
- Choose the local .pdf file. The working copy stays in this browser.
- Choose pages using 1,3-4 or all, then choose the clockwise angle. The page list below helps you check the selection.
- Compare original and rotated pages, download the new PDF, and reopen it to confirm the orientation is saved.
Available options
- Pages (1,3-4, or all)
- all
- Rotate clockwise
- 90° · 180° · 270°
Capabilities and limits
- One unencrypted PDF up to 30 MiB and 300 pages. Signed PDFs and XFA forms are rejected; keep the original.
Reorder PDF pagesArrange your pages, then save a new PDF.
Put every PDF page in the order you need and save a new file. Enter each page number once, or preview the pages and use the move buttons; missing or repeated pages are rejected.
Steps
- Choose the local .pdf file. The working copy stays in this browser.
- Enter a complete page order such as 3,1,2, or preview pages and move them with the arrows.
- Compare each original page with its output position, then download and reopen the new PDF.
Available options
- Complete page order (for example 3,1,2)
- Enter as needed
Include every page exactly once, for example 3,1,2. You can also use the page preview to reorder.
Capabilities and limits
- One unencrypted PDF up to 30 MiB and 300 pages. Interactive forms and detected signatures are rejected; bookmarks and attachments are not copied. Keep the original.
Extract PDF pagesPick the pages you need and save them together.
Save only the PDF pages you need in one new document. Enter pages in the desired output order or select thumbnails. Searchable source text stays selectable; scanned page images are not OCRed.
Steps
- Choose the local .pdf file. The working copy stays in this browser.
- Enter pages such as 3,1-2 or preview and check the needed pages. Repeated numbers are included only once.
- Compare original and extracted pages, download the PDF and check that text is still selectable.
Available options
- Pages to extract (1,3-4)
- Enter as needed
Capabilities and limits
- One unencrypted PDF up to 30 MiB and 300 pages. Interactive forms and detected signatures are rejected; bookmarks and attachments are not copied. Keep the original.
Remove PDF pagesRemove unwanted pages and keep the rest.
Choose the pages to remove from one PDF, then save the rest in their original order. Preview the selection and confirm it; changing page numbers clears confirmation. At least one page must remain.
Steps
- Choose the local .pdf file. The working copy stays in this browser.
- Enter pages such as 2,4-5 or preview and check them. Confirm the current list after any change.
- Review the removed and remaining page numbers, then download and reopen the new PDF.
Available options
- Pages to remove (1,3-4)
- Enter as needed
- I confirm removing the selected pages.
- Off by default
Capabilities and limits
- One unencrypted PDF up to 30 MiB and 300 pages. Interactive forms and detected signatures are rejected; bookmarks and attachments are not copied. Keep the original.
PDF to imagesSave selected PDF pages as images.
Turn selected PDF pages into PNG or JPEG images without changing the original. Download one image, or a ZIP when you choose multiple pages.
Steps
- Choose the local .pdf file. The working copy stays in this browser.
- Choose pages from the preview or enter a range, then set image format and rendering scale. JPEG quality appears only for JPEG.
- Check the page numbers and image detail. Download a single PNG/JPG or the ZIP for multiple pages.
Available options
- Pages (1,3-4, or all)
- all
- Image format
- PNG · JPEG
- Rendering scale
- 1.5
- JPEG quality (0.1–1)
- 0.9
Capabilities and limits
- Unencrypted PDFs are limited to 30 MiB and 300 pages; rendering is capped at 12 million pixels per page.
PDF to textExtract selectable text from a PDF for easier editing.
Save selectable PDF text as a UTF-8 TXT file. Choose pages in the order you need; scanned pages without a text layer are reported and are not passed through OCR.
Steps
- Choose the local .pdf file. The working copy stays in this browser.
- Select pages in the preview or enter page numbers in the order you need, then choose “Extract text”.
- Read the text preview and any missing-text page numbers. Copy or download the TXT file.
Available options
- Pages (1,3-4, or all)
- all
Capabilities and limits
- Unencrypted PDFs are limited to 30 MiB and 300 pages each; keep the original.
PDF page sizes & infoCount page sizes and page numbers across one or several PDFs.
Count display sizes across one or several PDFs, with page numbers for each file and dimensions in inches and millimeters. Inspect available title and author information without changing the PDFs.
Steps
- Choose one or more local, unencrypted PDFs.
- Select “Check page sizes” to count displayed dimensions across files and within each PDF.
- Check each file’s page numbers. Download JSON for per-page boxes, rotation and document fields.
Capabilities and limits
- Choose up to 20 unencrypted PDFs, each up to 30 MiB and 300 pages, with 80 MiB total. Keep the originals.
Add PDF page numbersAdd visible page numbers to a PDF, with an optional unnumbered cover.
Add visible page numbers to a handout or merged PDF. Keep a cover unnumbered, choose where numbering starts, and preview each page before download.
Steps
- Choose a local PDF.
- Choose how many opening pages to leave unnumbered, the first printed number and its position.
- Add numbers, inspect the result page by page, then download the PDF.
Available options
- Opening pages without numbers
- 0
For a one-page cover, enter 1. Numbering begins on the next page.
- Starting number
- 1
- Font size (pt)
- 11
- Bottom margin (pt)
- 24
- Horizontal position
- Center · Left · Right
Capabilities and limits
- Page numbers are drawn over existing content, including on rotated pages; content is not moved to make room.
- PDFs stay in your browser. The limit is 30 MiB and 300 pages.
Crop PDF marginsRemove visible white margins from each PDF page, or crop exact edges.
Make scanned pages easier to read by detecting white margins page by page. Or enter exact crop amounts for the visible edges. Compare the original and result before downloading.
Steps
- Choose a local PDF. Automatic margin detection is selected by default.
- Keep a safety margin around the detected content, or switch to exact edge values.
- Crop the PDF, compare original and result page by page, then download.
Available options
- Crop method
- Detect white margins · Exact edge values
- Keep around content (pt)
- 12
Extra space around detected marks on each page; 12 pt is about 4 mm.
- Visible left (pt)
- 20
- Visible right (pt)
- 20
- Visible top (pt)
- 20
- Visible bottom (pt)
- 20
Capabilities and limits
- Automatic detection uses a rendered page image and may mistake faint marks or uneven scan backgrounds for blank space. Review every page before using the result.
- Cropping only hides content outside the visible area; it does not redact or remove it. Files stay in the browser, up to 30 MiB and 300 pages.
Watermark PDFCenter a diagonal text watermark on every PDF page and inspect the actual output page by page.
Add one diagonal label to every page of a local PDF. The text is centered within each visible page and reduced when needed to avoid clipping, including on landscape and rotated pages.
Steps
- Choose one local PDF, then enter a short ASCII watermark label in the visible controls.
- Set the requested font size and opacity; generate the PDF. The label is centered and can shrink on narrower pages.
- Use the output page selector to inspect every page, then download the watermarked PDF.
Available options
- Watermark text, printable ASCII
- DRAFT
- Requested font size, pt
- 48
- Opacity, 0.05–1
- 0.2
Capabilities and limits
- Printable ASCII characters only, 1–80 characters. Requested size 6–150 pt (whole points) and opacity 0.05–1 (up to two decimals). Long labels shrink to fit; text that cannot fit at 6 pt is rejected.
- One unencrypted PDF up to 30 MiB and 300 pages. A watermark can be edited or removed and does not protect the document; changing a signed PDF may invalidate its signature.
- The PDF is processed locally in this browser. Review every output page before downloading.
PDF metadata workspaceInspect and edit PDF metadata, resolve XMP conflicts, or clear supported fields locally.
Check the existing title, author, subject and keywords before editing. If the PDF also has document XMP, remove that conflicting entry before writing new Info fields so a reader does not keep showing the old values. You can also clear supported Info and XMP entries.
Steps
- Choose a local PDF and inspect its current Info fields and XMP status.
- Edit fields directly when document XMP is absent, choose Replace to remove document XMP before editing, or choose Clear to remove supported Info and XMP entries.
- Process the PDF, inspect the metadata read from the generated file, and download it.
Available options
- Task
- Edit Info fields · Replace document metadata · Clear supported metadata
- Title
- Enter as needed
- Author
- Enter as needed
- Subject
- Enter as needed
- Keywords
- Enter as needed
Capabilities and limits
- One unencrypted PDF, ≤30 MiB and 300 pages. Changes may invalidate signatures; keep the original.
- Files and input are processed in this browser. No account needed.
- Replace removes the entire document XMP entry, including properties not shown here. Clear removes standard Info and document/page XMP entries. Neither removes visible text, attachments, annotations or every embedded metadata item; this is not redaction.
Resize PDF pagesFit each visible PDF page onto A4 or US Letter with chosen orientation and margins.
Place the visible area of each PDF page proportionally onto A4 or US Letter paper. Choose minimum margins and either match each page's orientation or set one direction for the whole file. Preview every generated page before saving.
Steps
- Choose a local PDF and check its visible page size and crop summary.
- Choose A4 or US Letter, output orientation and a whole-point minimum margin from 0–100 pt.
- Generate the new PDF, inspect each actual output page and save it.
Available options
- Paper
- A4 · Letter
- Output orientation
- Match each source page · Portrait for every page · Landscape for every page
- Minimum margin, pt
- 18
Capabilities and limits
- Uses the source page's visible crop, not hidden artwork outside it. Source pages with rotation settings must be normalized first. Interactive forms, annotations and bookmarks are not carried over.
- One unencrypted PDF, ≤30 MiB and 300 pages. Changes may invalidate signatures; keep the original.
- Files and input are processed in this browser. No account needed.
N-up PDFCreate a printable PDF with two or four source pages per sheet and preview every output sheet.
Fit two or four source pages onto each A4 or Letter sheet in reading order. Preview every generated sheet, especially the last partly filled one, before printing.
Steps
- Choose a local PDF and review its page count and crop/blank-page summary.
- Choose two or four pages per sheet, A4 or Letter paper, and the margin inside each slot.
- Create the PDF, preview each output sheet in reading order, then save the file.
Available options
- Pages per sheet
- 2 · 4
- Paper
- A4 · Letter
- Cell margin, pt
- 18
Capabilities and limits
- Two or four pages per sheet, with a 0–100 pt whole-number margin inside each slot. Visible source crops are respected. Rotated pages must be normalized first; forms, annotations and bookmarks are not carried over.
- One unencrypted PDF, ≤30 MiB and 300 pages. Changes may invalidate signatures; keep the original.
- Files and input are processed in this browser. No account needed.
Flatten PDF form fieldsBake supported AcroForm appearances into page content so ordinary form controls are no longer editable.
Bake supported AcroForm appearances into page content so ordinary form controls are no longer editable. Select a PDF with AcroForm fields and keep an editable original.
Steps
- Select a PDF with AcroForm fields and keep an editable original.
- Flatten field appearances into page content and download the result.
- Check visible text, checkboxes, page count and removed form controls in a reader. Flattening is not redaction, encryption or signature validation.
Capabilities and limits
- One unencrypted PDF, up to 30 MiB and 300 pages. XFA and detected digital signatures are rejected. Flattening does not remove comments, attachments or hidden data.
- Files stay in the browser. Keep the editable original and inspect every page of the output. PDFs with no AcroForm fields produce no form changes.
PDF form inspection and fillingList AcroForm field names, types and options, then fill supported fields using an explicit JSON mapping.
Inspect one PDF to see its AcroForm field names, types and choices. Then switch to fill mode and map supported field names to JSON values.
Steps
- Upload the PDF and inspect its exact field names, types and choices.
- Switch to fill mode and map exact field names to JSON values: strings for text and single choices, booleans for checkboxes.
- Download and reopen the saved form to verify field values and visible appearances. For a non-editable copy, use the separate flattening tool afterward.
Available options
- Task
- Inspect fields · Fill from JSON
Inspect fields first to get exact names and options. Then select filling and provide a JSON mapping in the input.
Capabilities and limits
- One unencrypted PDF up to 30 MiB and 300 pages. Fill mode supports writable text, checkboxes and single selections; printable ASCII text and line breaks only in multiline fields. XFA is unsupported, and detected signatures are rejected for filling.
- Inspection shows existing values except password fields, which are masked. The downloadable JSON may contain private data. Files stay in the browser; keep the original and verify saved appearances in a PDF reader.
PDF page overlayOverlay visible page artwork from a one-page PDF or a matching page set onto a base PDF.
Add letterhead, a transparent design, or page-matched marks to a base PDF. Add the base PDF first and the overlay PDF second; use the queue arrows to swap them. One overlay page repeats across every base page, while a matching page set maps page by page.
Steps
- Add the base PDF, then the overlay PDF; confirm their roles in the file queue.
- Choose opacity from 0 (invisible) to 1 (opaque). The overlay fits and centers within the visible crop area of each base page.
- Compare the base and output page by page; download and reopen the PDF before sharing.
Available options
- Overlay opacity (0–1)
- 1
Capabilities and limits
- Choose exactly two unencrypted PDFs, each up to 30 MiB and 300 pages. The overlay must have one page or the same page count as the base. The opacity range is 0–1; an opaque overlay can hide base content.
- Only visible PDF page artwork is overlaid. Annotations, editable form widgets and digital signatures in the overlay are not copied. Signed base PDFs and rotated pages are rejected. Files stay in the browser; keep the originals.